DR. CORY GREGUSKE DO
NPI 1508483959
Anesthesiology in Brighton, MA
About Dr. Cory Greguske Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CORY GREGUSKE DO (NPI 1508483959) is an individual anesthesiology provider in Brighton, Massachusetts, licensed in New Jersey (25MB12089300) and active in the NPI registry since July 2020. He is enrolled in Medicare PECOS, is affiliated with Mountain View Regional Medical Center, and is a graduate of Midwestern University, Chicago College Of Osteopathic Med (2020).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Cory Greguske Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Cory Greguske reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New Brunswick, NJ 08901
- Reassigned Medicare billing, New Jersey enrollment
- 492 clinicians in this Medicare group
Las Cruces, NM 88011
- Reassigned Medicare billing, New Mexico enrollment
- 238 clinicians in this Medicare group
Carmichael, CA 95608
- Reassigned Medicare billing, California enrollment
- 48 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mountain View Regional Medical Center
Acute Care Hospitals · Las Cruces, NMOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BOSTON, MA 02135
BRIGHTON, MA 02135
BOSTON, MA 02135
BRIGHTON, MA 02135
BRIGHTON, MA 02135
BOSTON, MA 02135
BRIGHTON, MA 02135
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Cory Greguske's NPI number?
The NPI number for Cory Greguske is 1508483959. It was assigned to this individual provider in the NPPES registry on July 1, 2020.
Where is Cory Greguske located?
Cory Greguske practices at 736 Cambridge St, Brighton, MA 02135. The listed phone number is (617) 789-3000.
What is Cory Greguske's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Cory Greguske enrolled in Medicare?
Yes. Cory Greguske is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Cory Greguske's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Cory Greguske reassigns Medicare benefits to 3 organizations: Rutgers Health-Rwj Pediatric Critical Care (New Brunswick, NJ), Las Cruces Hb Medical Services LLC (Las Cruces, NM) and Metropolitan Anesthesiology Consultants A Medical Group Inc (Carmichael, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Cory Greguske's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Cory Greguske affiliated with any hospitals?
According to CMS data, Cory Greguske is affiliated with Mountain View Regional Medical Center.
When was this NPI record last updated?
The NPPES record for Cory Greguske was last updated on July 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Cory Greguske, DO · NPI 1508483959
Anesthesiology physician in Brighton, Massachusetts. Individual provider, active in the CMS NPPES registry since July 1, 2020.
## Identity
- **NPI:** 1508483959 (Entity type: Individual)
- **Enumerated:** July 1, 2020
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 25MB12089300 (New Jersey)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 736 CAMBRIDGE ST, Brighton, MA 02135-2907
- **Phone:** (617) 789-3000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Rutgers Health-Rwj Pediatric Critical Care (NPI 1063420776, New Brunswick, NJ); Las Cruces Hb Medical Services LLC (NPI 1598446171, Las Cruces, NM); Metropolitan Anesthesiology Consultants A Medical Group Inc (NPI 1184671372, Carmichael, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Midwestern University, Chicago College Of Osteopathic Med, class of 2020
## Record status
- **NPPES last updated:** July 14, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1508483959) · Data from the CMS NPPES public registry.